Pen case



FIG. 1 is a perspective view of a pen case showing my new design;

FIG. 2 is a front view thereof, the rear view being a mirror image thereof;

FIG. 3 is a left side view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a top view thereof;

FIG. 6 is a bottom view thereof;

FIG. 7 is a cross-sectional view taken along line 7-7 in FIG. 5;

FIG. 8 is another left side view thereof with the cover opened;

FIG. 9 is another front view thereof with the cover opened;

FIG. 10 is another top view thereof with the cover opened; and,

FIG. 11 is another perspective view thereof shown in use.

The broken line subject matters in FIG. 11 are included for the purpose of illustrating unclaimed environment and form no part of the claimed design. 

CLAIM The ornamental design for a pen case, as shown and described. 